This can be useful to know what is happening in mac80211 from the low level driver without guessing from mac80211's callbacks. This can be used for error detection (too many deauths) and trigger recovery / debug flows based on that information. Another possibility is to change parameters that are not controlled by mac80211 based on this. For example, after a few association failures, a device may change its BT Coexist scheme or modify the time sharing between its vifs.
I use these patches in iwlwifi for debug only (currently). This allows me to collect firmware debug data upon authentication failure / deauth Rx etc... Emmanuel Grumbach (4): mac80211: convert rssi_callback() to event_callback() mac80211: notify the driver about authentication status mac80211: notify the driver about association status mac80211: notify the driver about deauth drivers/net/wireless/iwlwifi/dvm/mac80211.c | 15 ++-- drivers/net/wireless/iwlwifi/mvm/coex.c | 2 +- drivers/net/wireless/iwlwifi/mvm/coex_legacy.c | 2 +- drivers/net/wireless/iwlwifi/mvm/mvm.h | 4 +- include/net/mac80211.h | 90 ++++++++++++++++++++--- net/mac80211/driver-ops.h | 12 ++-- net/mac80211/mlme.c | 99 ++++++++++++++++++++------ net/mac80211/trace.h | 14 ++-- 8 files changed, 185 insertions(+), 53 deletions(-) -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
